Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Theodore M Teacher, MD

Neurology Physician in Mission Viejo, CA · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1871514729

Verified

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Registry record

Entity type Individual (Type 1)

Name Theodore M Teacher

Credential MD

Sex Male

Practice address 26691 Plaza, Suite 235, Mission Viejo, CA, 92691

Phone (949) 364-9054

Fax (949) 364-6171

Enumeration date Jul 23, 2006

Last updated in NPPES Jan 30, 2024

Taxonomy & licenses

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License G45898 (CA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
ZZZ57376Z	Other	CA	BLUE SHIELD

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Theodore Teacher practice?

The practice location on file with NPPES is in Mission Viejo, CA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Theodore Teacher?

The National Provider Identifier (NPI) for Theodore Teacher is 1871514729, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-01-30.